Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 313 · 40 questions

Engineer's tip (Test fairly, record honestly): Prototype = an early model made to test an idea. Fair test: change one thing, keep the rest the same, measure and record every result. Mean of three tests = (first + second + third) ÷ 3.

1. 1.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) use the same load (d) test it only once
2. 2.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) read the challenge rules (c) build it with straws (d) sketch three ideas
3. 3.True or false: to guess, do not measure is poor testing. (a) False (b) True
4. 4.True or false: to skip writing results is good testing. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) skip writing results (d) repeat each test
6. 6.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 190 g. Which design was the weakest? (a) design A (b) design B (c) design C
8. 8.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to decorate a room (c) to avoid testing (d) to sell them at once
9. 9.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
10. 10.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
11. 11.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
12. 12.True or false: to test it only once is good testing. (a) True (b) False
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 240 g and design C held 190 g. Which design was the weakest? (a) design B (b) design C (c) design A
14. 14.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
15. 15.True or false: to use the same load is poor testing. (a) True (b) False
16. 16.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 350 g. Which design was the strongest? (a) design A (b) design B (c) design C
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 370 g. Which design was the weakest? (a) design A (b) design B (c) design C
18. 18.🧪 Why repeat a test three times? (a) to get reliable results (b) to use more paper (c) the first is wrong (d) it looks busy
19. 19.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 310 g and design C held 260 g. Which design was the weakest? (a) design B (b) design C (c) design A
21. 21.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
22. 22.🔍 Which is the odd one out? (a) skip writing results (b) guess, do not measure (c) record every result (d) test it only once
23. 23.🧪 A paper bridge was tested three times. It held 210 g, 170 g and 190 g. What is the mean (average) load it held, in grams?
24. 24.🔍 Which is the odd one out? (a) use the same load (b) guess, do not measure (c) measure the same way (d) change only one thing
25. 25.🧪 A paper bridge was tested three times. It held 180 g, 110 g and 160 g. What is the mean (average) load it held, in grams?
26. 26.🧪 A paper bridge was tested three times. It held 280 g, 110 g and 150 g. What is the mean (average) load it held, in grams?
27. 27.🔍 Which is the odd one out? (a) use a new load each time (b) guess, do not measure (c) hide a failed test (d) measure the same way
28. 28.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
29. 29.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
30. 30.🧪 What is a prototype? (a) the final product (b) a broken part (c) a sales poster (d) an early test model
31. 31.🔍 Which is the odd one out? (a) test it only once (b) guess, do not measure (c) use a new load each time (d) repeat each test
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 360 g and design C held 310 g. Which design was the weakest? (a) design B (b) design A (c) design C
33. 33.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
34. 34.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
35. 35.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
36. 36.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
37. 37.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) read the challenge rules (b) load it with coins
38. 38.True or false: to change only one thing is poor testing. (a) False (b) True
39. 39.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) load it with coins (b) strengthen the weak part
40. 40.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) build it with straws (b) strengthen the weak part

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